Code-3

Code-3 is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Smoke Detection Equipment

North American Industry Classification System (NAICS) Categories:

• Other Building Material Dealers > Alarms, Signaling & Security Equipment > Smoke Detection Equipment

Standard Industry Classification (SIC) Categories:

• Electrical Apparatus & Equipment > Alarms, Signaling & Security Equipment > Smoke Detection Equipment